The swing check valves with rubber covered disc belong to the last generation of swing check valves, developed in order to improve the performance and the technical characteristics. These valves are manufactured in ductile iron, with the swing in ductile iron fully covered with NBR rubber. These swing check valves allow the full passage of the flow, with no water losses (compared to classical swing check valves with disc in cast iron). The disc doesn¡¯t need any maintenance and avoids any noise during closure. Epoxy coated inside and outside, these swing check valves are suitable for potable water.